+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1730 Marceline (1936 UA) Classification: Main-belt Asteroid          SPK-ID: 2001730 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2223130152646538 3.5346e-08   a 2.785056081281381 8.9385e-09 au q 2.165901866170556 9.8973e-08 au i 9.488408916858242 3.8517e-06 deg node 171.1523361836998 2.1787e-05 deg peri 226.5505698623312 2.2865e-05 deg M 357.5223053899543 7.413e-06 deg tp 2459012.184082621383 (2020-Jun-11.68408262) 3.4976e-05 TDB period 1697.654636953143 4.65 8.1728e-06 2.238e-08 d yr n .2120572654554216 1.0209e-09 deg/d Q 3.404210296392205 1.0926e-08 au   Orbit Determination Parameters    # obs. used (total)      2696      data-arc span      32554 days (89.13 yr)      first obs. used      1931-09-15      last obs. used      2020-10-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46942      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:16:03   Additional Information  Earth MOID = 1.18463 au   Jupiter MOID = 2.07772 au   T_jup = 3.275  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.0   n/a MPO502170   diameter diameter 15.203 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.837 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aymami, J.M. (2011) Minor Planet Bull. 38, 55-56.] [Brinsfield, J.W. (2011) Minor Planet Bull. 38, 73-74.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.] geometric albedo albedo 0.192   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Xe   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1730 Marceline (1936 UA)          Discovered 1936-Oct-17 by Laugier, M. at Nice Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1936 UA = 1931 RE = 1950 WF = 1952 DR2 = 1954 QA = 1971 JC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-05 09:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin